Drink Holders: Testing and Inspection

Heated/Cooled Cup Holder Malfunction

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (with HP2) (Initial Inspection and Diagnostic Overview)Diagnostic System Check - Vehicle (without HP2) (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.

Diagnostic Fault Information





Circuit/System Description

The Heated/Cooled cup holder system uses a positive temperature coefficient (PTC) ceramic element. The PTC is attached to the side of an aluminum cylinder that forms the cup holder to provide the temperature change. B+ will either heat or cool the PTC element in the cup holder. Voltage applied in one direction heats the element and cools it when the polarity is reversed. A momentary switch on the console surface operates the unit. It offers off, heat and cool settings. The cup holders have a temperature range that heats to 140°F or cools to 35°F. A light in the switch glows red to indicate heating and blue to indicate cooling.

Reference Information
Schematic Reference

Heated/Cooled Cupholder Schematics Diagrams
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Heated/Cooled Cup Holder Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information

Circuit/System Verification

Ignition ON, turn the Heated/Cooled cup holder ON. Feel the inside of the Heated/Cooled cup holder it should feel warm or cool to the touch within a few minutes depending on the switch position.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the Heated/Cooled cup holder.
2. Test for less than 10 ohms between the ground circuit terminal A and ground.

• If greater than the specified range, test the ground circuit for an open/high resistance.

3. 2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal D and ground.

• If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance. If the circuit tests normal and the B+ circuit fuse is open, test or replace the Heated/Cooled cup holder.

4. If all circuits test normal, test or replace the Heated/Cooled cup holder.

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

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